• NBN EN 50083-3 : 1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    CABLE NETWORKS FOR TELEVISION SIGNALS, SOUND SIGNALS AND INTERACTIVE SERVICES - PART 3: ACTIVE WIDEBAND EQUIPMENT FOR COAXIAL CABLE NETWORKS

    Available format(s): 

    Superseded date:  01-08-2002

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Belgian Standards

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
        1.1 General
        1.2 Specific scope of this part
    2 Normative references
    3 Terms, definitions, symbols and abbreviations
        3.1 Terms and definitions
        3.2 Symbols
        3.3 Abbreviations
    4 Methods of measurement
        4.1 Linear distortion
        4.2 Non-linear distortion
        4.3 Automatic gain and slope control step response
        4.4 Noise figure
    5 System performance
        5.1 General requirements
        5.2 Safety
        5.3 Electromagnetic compatibility (EMC)
        5.4 Frequency range
        5.5 Impedance and return loss
        5.6 Gain
        5.7 Flatness
        5.8 Test points
        5.9 Group delay
        5.10 Noise figure
        5.11 Non-linear distortion
        5.12 Automatic gain and slope control
        5.13 Hum modulation
        5.14 Power supply
        5.15 Environmental
        5.16 Marking
        5.17 Mean operating time between failure (MTBF)
    Annex A (normative) Test carriers, levels and intermodulation
    products
    Annex B (normative) Checks on test equipment
    Annex C (normative) Frequency allocation plan
    Annex D (normative) Special national conditions
    Annex E (informative) Measurement errors which occur due to
    mismatched equipment
    Figure 1 Measurement of return loss
    Figure 2 Maximum error a for measurement of return loss
               using V.S.W.R. bridge with directivity
               D = 46 dB and 26 dB test port return loss
    Figure 3 Basic arrangement of test equipment for evaluation
               of the ratio of signal to intrermodulation product
    Figure 4 Connection of test equipment for the measurement of
               non-linear distortion by composite beat
    Figure 5 Connection of test equipment for the measurement of
               composite cross-modulation
    Figure 6 Carrier/hum ratio = 20 lgA/a(dB)
    Figure 7 Test set-up for local-powered objects
    Figure 8 Test set-up for remote-powered objects
    Figure 9 Oscilloscope display
    Figure 10 Measurement of AGC step response
    Figure 11 Time constant Tc
    Figure 12 Measurement of noise figure
    Figures A.1, A.2 and A.3
    Figure E.1 Error concerning return loss measurement
    Figure E.2 Maximum ripple
    Table 1 Return loss requirements for all equipment
    Table 2 Correction factors where the modulation used is
              other than 100%
    Table C.1
      

    Abstract - (Show below) - (Hide below)

    Covers cable networks for television and sound signals, together with interactive services, which include equipment, systems and installations.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Belgian Standards
    Status Superseded
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective